/*!	 docks/dock_history.h
**	 Template Header
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifndef __SYNFIG_STUDIO_DIALOG_HISTORY_H
#define __SYNFIG_STUDIO_DIALOG_HISTORY_H

#include "docks/dockable.h"
#include <gtkmm/treeview.h>
#include "instance.h"
#include <gtkmm/actiongroup.h>
#include "docks/dock_canvasspecific.h"

namespace studio
{

class Dock_History : public Dock_CanvasSpecific
{
    Glib::RefPtr<Gtk::ActionGroup> action_group;
    Gtk::TreeView *action_tree;

    etl::loose_handle<studio::Instance>	selected_instance;

    sigc::connection on_undo_tree_changed_connection;

    void on_undo_tree_changed();

    void set_selected_instance_(etl::handle<studio::Instance> x);

    void set_selected_instance(etl::loose_handle<studio::Instance> x);

    void set_selected_instance_signal(etl::handle<studio::Instance> x);

    void delete_instance(etl::handle<studio::Instance> x);

    Gtk::Widget* create_action_tree();

public:

    etl::loose_handle<studio::Instance> get_selected_instance()
    {
        return selected_instance;
    }

    void clear_undo();
    void clear_redo();
    void clear_undo_and_redo();

    bool on_action_event(GdkEvent *event);
    void on_action_toggle(const Glib::ustring& path);

    void update_undo_redo();

    Dock_History();
    ~Dock_History();
protected:
    virtual void init_instance_vfunc(etl::loose_handle<Instance> instance);

}; // END of Dock_History

}; // END of namespace studio

#endif